CN104218649B - Battery charging and discharging device and management circuit - Google Patents
Battery charging and discharging device and management circuit Download PDFInfo
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- CN104218649B CN104218649B CN201410508477.0A CN201410508477A CN104218649B CN 104218649 B CN104218649 B CN 104218649B CN 201410508477 A CN201410508477 A CN 201410508477A CN 104218649 B CN104218649 B CN 104218649B
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- 238000007599 discharging Methods 0.000 title claims abstract description 52
- 238000002955 isolation Methods 0.000 claims description 27
- 238000005259 measurement Methods 0.000 claims description 26
- 238000004891 communication Methods 0.000 claims description 22
- 230000005611 electricity Effects 0.000 claims description 21
- 238000000034 method Methods 0.000 description 11
- 238000001914 filtration Methods 0.000 description 6
- 238000011084 recovery Methods 0.000 description 5
- 230000035772 mutation Effects 0.000 description 3
- 230000001172 regenerating effect Effects 0.000 description 3
- 241000208340 Araliaceae Species 0.000 description 2
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000008434 ginseng Nutrition 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
The invention discloses a battery charging and discharging device and a management circuit, wherein electrical parameters on the whole circuit are collected by an electrical parameter collecting unit, collected data is transmitted to a micro control unit, according to received electrical parameters and/or preset switching frequency, the micro control unit controls a drive circuit to output driving signals to a first switching circuit and a second switching circuit, thereby controlling the through-current directions of the first and second switching circuits and shifting charging and discharging of the battery to be managed, because the charging circuit is in series connected with an inductance coil, current cannot be suddenly increased so as to protect the whole charging circuit and ensure its security, besides, through an external power supply, the battery can be charged and the inductance coil can be gathered with electric energy, at some point, the inductance coil can release the gathered electric energy to charge the battery and to recycle the energy.
Description
Technical field
The present invention relates to cell art, more particularly to battery charging and discharging device and management circuit.
Background technology
With the extensive application of power electronic equipment, in self-contained battery electric energy transmitting procedure, it is various unnecessary to exist
Loss.For example, when being charged to battery system, often burn because electric power system voltage is higher than battery rated voltage
Battery, when in addition battery starts externally to charge, electric current can increase moment, inevitably has one for some circuit components
A little impacts, it is likely that the life-span reducing components and parts even burns components and parts, there is also certain damage in itself for battery.
Meanwhile, increasingly severe with energy crisis, and the consciousness of the energy-conserving and environment-protective of people is more next strong, user
Want to, in battery charge and discharge process, the energy of mutation be reclaimed.
Content of the invention
Based on this it is necessary to in current battery charge and discharge process, due to current break, have a strong impact on circuit safety,
And the problem of waste mass energy, provide one kind to be able to ensure that battery charging and discharging safety, and can be to mutation energy regenerating utilization
Battery charging and discharging device and management circuit.
A kind of battery charging and discharging manages circuit, including micro-control unit, electrical quantity collecting unit, drive circuit, first opens
Close circuit, second switch circuit, inductance coil and the first diode, wherein, described drive circuit includes input, first defeated
Go out end and the second outfan；
Described micro-control unit is connected with the input of described electrical quantity collecting unit and described drive circuit respectively, institute
First outfan of the control end and described drive circuit of stating first switch circuit is connected, the input of described first switch circuit
It is connected with the outfan of described second switch circuit, the control end of described second switch circuit is defeated with the second of described drive circuit
Go out end to connect, the positive pole of the input of described second switch circuit and one end of described inductance coil and described first diode
Connect, the other end of described inductance coil is connected with the negative pole of battery to be managed, and the negative pole of described first diode is treated with described
The positive pole of management battery connects；
Described electrical quantity collecting unit is used for gathering electric signal parameter in described battery charging and discharging management circuit, wherein, institute
State electric signal parameter and include voltage parameter and current parameters；
Electric signal parameter and/or default switching frequency that described micro-control unit gathers according to described electrical quantity collecting unit
Rate, controls described drive circuit to export the first drive signal extremely described to described first switch circuit, output the second drive signal
Second switch circuit so that described first switch circuit according to the first different drive signal control electric currents from first switch circuit
Outfan flow to the input of first switch circuit, or flow to first switch circuit from the input of first switch circuit
Outfan, makes described second switch circuit according to the second different drive signal control electric currents from the outfan of second switch circuit
Flow to the input of second switch circuit, or the outfan flowing to second switch circuit from the input of second switch circuit.
A kind of battery charging and discharging manages circuit, including micro-control unit, current feedback amplifier, voltage feed-back amplifier,
External terminal feedback amplifier, measurement resistance, pwm drive circuit, first switch pipe, the second diode, second switch pipe, the 3rd
Diode, the 4th audion, the 5th audion, inductance coil, the first diode, power supply, battery voltage acquisition unit, electric capacity with
And isolation communication unit, wherein, described isolation communication unit is used for described micro-control unit and described battery voltage acquisition list
First voltage isolation, described pwm drive circuit includes input, the first outfan and the second outfan, described battery voltage acquisition
Unit includes the first collection terminal, the second collection terminal and outfan；
Described power supply, described pwm drive circuit input, the outfan of described current feedback amplifier, described voltage are anti-
The outfan of the outfan of feedback amplifier and external terminal feedback amplifier is connected with described micro-control unit respectively, described
First outfan of pwm drive circuit is connected with the control end of described first switch pipe, the second output of described pwm drive circuit
End is connected with the control end of described second switch pipe, the in-phase end of described external terminal feedback amplifier and described first switch pipe
Input connect, the outfan of described first switch pipe with described measurement resistance one end be connected, described measure resistance another
One end is connected with the outfan of described second switch pipe, the negative pole of the input of described second switch pipe and described 4th diode
Connect, the positive pole of described 4th diode is connected with one end of described inductance coil, the other end of described inductance coil with wait to manage
The negative pole of reason battery connects, and the end of oppisite phase of described external terminal feedback amplifier is connected with the positive pole of described battery to be managed；
Described second diode is in parallel with described first switch pipe, the negative pole of described second diode and described first switch
The input of pipe connects, and the positive pole of described second diode is connected with the outfan of described first switch pipe, described second switch
Pipe is connected with described 3rd diodes in parallel, and the input of described second switch pipe is connected with the negative pole of described 3rd diode,
The outfan of described second switch pipe is connected with the positive pole of described 3rd diode, described current feedback amplifier and described measurement
Resistor coupled in parallel, and the end of oppisite phase of described current feedback amplifier is connected with the outfan of described first switch pipe, described electric current is anti-
Feedback amplifier end of oppisite phase be connected with the outfan of described second switch pipe, the end of oppisite phase of described voltage feed-back amplifier with described
The negative pole of battery to be managed connects, and the in-phase end of described voltage feed-back amplifier is connected with the positive pole of described battery to be managed, institute
The positive pole stating the first diode is connected with the input of described second switch pipe, and the negative pole of described first diode is waited to manage with described
The positive pole of reason battery connects, and the positive pole of described 5th diode is connected with the outfan of described second switch pipe, and the described 5th 2
The negative pole of pole pipe is connected with the negative pole of described battery to be managed；
First collection terminal of described battery voltage acquisition unit is connected with the positive pole of described battery to be managed, described battery electricity
Second collection terminal of pressure collecting unit is connected with the negative pole of described battery to be managed, the outfan of described battery voltage acquisition unit
It is connected with described micro-control unit by described isolation communication unit, the output of one end of described electric capacity and described second switch pipe
End connects, and the other end of described electric capacity is connected with the negative pole of described first diode.
A kind of battery charging and discharging device, manages circuit, described battery including battery body and battery charging and discharging described above
Body is connected with described battery charging and discharging management circuit.
Battery charging and discharging of the present invention manages circuit, and electrical quantity collecting unit gathers electrical quantity in whole circuit, and will gather
To data is activation micro-control unit, micro-control unit drives electric according to the electrical quantity receiving and/or the control of default switching frequency
Road output drive signal is to first switch circuit and second switch circuit, thus controlling first switch circuit and second switch circuit
Sense of current is passed through in middle permission, realizes the switching to battery charging and discharging to be managed, is in series with inductor wire due in charging circuit
Circle, electric current will not increase suddenly, protect whole charging circuit it is ensured that the safety of charging circuit, in addition, external power source is for battery
Also electric energy is gathered for inductance coil, when a certain moment, micro-control unit judges now to need on inductance coil while charging
During electric energy release, drive circuit controls second switch circuit to allow only to allow electric current to flow to its input from outfan, now electricity
The electric energy gathering before sense releasing winding is charged for battery, realizes the recovery of energy,.It can be seen that, battery charging and discharging of the present invention
Management circuit both can ensure that circuit discharge and recharge safety, the energy in charging process can be recycled, energy saving again.
Battery charging and discharging of the present invention manages circuit detailed example, anti-including micro-control unit, current feedback amplifier, voltage
Feedback amplifier, external terminal feedback amplifier, measurement resistance, pwm drive circuit, first switch pipe, the second diode, second open
Guan Guan, the 3rd diode, the 4th audion, the 5th audion, inductance coil, the first diode, power supply, battery voltage acquisition list
Unit and isolation communication unit, wherein, described isolation communication unit is used for adopting described micro-control unit with described cell voltage
Collection cell voltage isolation, described drive circuit includes input, the first outfan and the second outfan, described battery voltage acquisition
Unit includes the first collection terminal, the second collection terminal and outfan, current feedback amplifier, voltage feed-back amplifier, external connection end
In sub- feedback amplifier, measurement resistance and battery voltage acquisition unit Acquisition Circuit, various electrical quantitys send to microcontroller list
Unit, micro-control unit, according to the electrical parameter data receiving, outputs control signals to pwm drive circuit, and pwm drive circuit is respectively
Output drive signal, to first switch pipe and second switch pipe, controls the conducting of first switch pipe and second switch pipe or cuts
Only, thus control electric current flow direction, that is, realize the switching of discharge and recharge, circuit is provided with inductance coil and avoids electricity in charge and discharge process
Stream mutation protection circuit safety, the electric energy in inductance coil can also be charged for battery to be managed, realizes energy regenerating, isolation
Communication unit realizes the isolation of voltage between micro-control unit and battery voltage acquisition unit it is ensured that data acquisition, data accurate,
In addition, power supply provides independent electric energy to guarantee its autonomous working for micro-control unit, the 4th diode, the 5th diode can make
The maximum current passing through is allowed to differ during charge and discharge, the difference of component parameter allows the rated current passed through to change therewith
Become.As: charging current is larger, then the rated current that the 4th diode can pass through is larger.Discharge current is less, then the 5th diode
The rated current that can pass through is less, and electric capacity is used for filtering, and the interference electric current that mixes in filtering circuit exists it is ensured that each in circuit
Parameter acquisition accurately and micro-control unit controls accurate.
In addition, the present invention also provides a kind of battery charging and discharging device, including battery body and battery charging and discharging described above
Management circuit, it had both enabled cell safety discharge and recharge, had higher service life, again can be to the electricity of battery charge and discharge process
Energy recycling, energy saving.
Brief description
Fig. 1 manages the structural representation of first embodiment of circuit for battery charging and discharging of the present invention；
Fig. 2 manages the structural representation of second embodiment of circuit for battery charging and discharging of the present invention；
Fig. 3 manages the structural representation of the 3rd embodiment of circuit for battery charging and discharging of the present invention；
Fig. 4 manages the structural representation of the 4th embodiment of circuit for battery charging and discharging of the present invention.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below according to drawings and Examples, right
The present invention is further elaborated.It should be appreciated that described herein be embodied as only in order to explain the present invention, not
Limit the present invention.
As shown in figure 1, a kind of battery charging and discharging manages circuit, including micro-control unit 100, electrical quantity collecting unit 200,
Drive circuit 300, first switch circuit 400, second switch circuit 500, inductance coil 600 and the first diode 700, its
In, described drive circuit 300 includes input, the first outfan and the second outfan；
The input with described electrical quantity collecting unit 200 and described drive circuit 300 respectively of described micro-control unit 100
End connects, and the control end of described first switch circuit 400 is connected with the first outfan of described drive circuit 300, and described first
The input of on-off circuit 400 is connected with the outfan of described second switch circuit 500, the control of described second switch circuit 500
End processed is connected with the second outfan of described drive circuit 300, the input of described second switch circuit 500 and described inductor wire
Positive pole connection, the other end of described inductance coil 600 and the electricity to be managed of one end of circle 600 and described first diode 700
The negative pole in pond connects, and the negative pole of described first diode 700 is connected with the positive pole of described battery to be managed；
Described electrical quantity collecting unit 200 is used for gathering electric signal parameter in described battery charging and discharging management circuit, wherein,
Described electric signal parameter includes voltage parameter and current parameters；
Electric signal parameter that described micro-control unit 100 gathers according to described electrical quantity collecting unit 200 and/or default cut
Change frequency, control described drive circuit 300 to export the first drive signal to described first switch circuit 400, output second driving
Second switch circuit 500 described in signal, so that described first switch circuit 400 is according to the first different drive signal control electric currents
Flow to the input of first switch circuit 400 from the outfan of first switch circuit 400, or from first switch circuit 400
Input flows to the outfan of first switch circuit 400, makes described second switch circuit 500 according to the second different drive signals
Control electric current flows to the input of second switch circuit 500 from the outfan of second switch circuit 500, or from second switch electricity
The input on road 500 flows to the outfan of second switch circuit 500.
Micro-control unit 100 specifically can be realized in the following way open with drive circuit 300 Collaborative Control first
Close and allow in circuit 400 and second switch circuit 500 to pass through electric current.
When described first drive signal is high level, described first switch circuit 400 control electric current is from first switch electricity
The outfan on road 400 flows to the input of first switch circuit 400, when described first drive signal is low level, described the
One on-off circuit 400 control electric current flows to the outfan of first switch circuit 400 from the input of first switch circuit 400, when
When described second drive signal is high level, described second switch circuit 500 control electric current is from the input of second switch circuit 500
End flows to the outfan of second switch circuit 500, when described second drive signal is low level, described second switch circuit
500 control electric currents flow to the input of second switch circuit 500 from the outfan of second switch circuit 500.
First switch circuit 400 and second switch circuit 500 control the direction allowing current flowing in whole circuit, thus
Whole battery charging and discharging management circuit is controlled to be in charged state, discharge condition or energy recovery state.Detailed separately below
Carefully explain in these three states, first switch circuit 400 and second switch circuit 500 control process.
Charged state
Electrical quantity collecting unit 200 gathers voltage parameter and current parameters in whole circuit, and transmits the parameter of collection extremely
Micro-control unit 100, when micro-control unit 100 now enters charged state according to these parameter decisions, micro-control unit 100
Control drive circuit 300 to generate low level to first switch circuit 400, generate high level to second switch circuit 500 simultaneously, this
When single current loop in the sense of current as follows: the positive pole of the positive pole of external power source → battery to be managed → battery to be managed negative
The outfan of the input → second switch circuit 500 of pole → inductance coil 600 → second switch circuit 500 → first switch electricity
The negative pole of the outfan → external power source of the input on road 400 → first switch circuit 400.
Discharge condition
Electrical quantity collecting unit 200 gathers voltage parameter and current parameters in whole circuit, and transmits the parameter of collection extremely
Micro-control unit 100, when micro-control unit 100 now enters discharge condition according to these parameter decisions, micro-control unit 100
Control drive circuit 300 to generate high level to first switch circuit 400, generate low level to second switch circuit 500 simultaneously, this
When single current loop in the sense of current as follows: negative pole → the first of the positive pole → load of the positive pole → load of battery to be managed opens
Close the outfan → second switch of the input → second switch circuit 500 of outfan → first switch circuit 400 of circuit 400
The negative pole of input → inductance coil 600 → battery to be managed of circuit 500.
Energy recovery state
Electrical quantity collecting unit 200 gathers voltage parameter and current parameters in whole circuit, and transmits the parameter of collection extremely
Micro-control unit 100, when micro-control unit 100 now needs according to these parameter decisions energy on inductance coil 600 is carried out
During recovery, micro-control unit 100 controls drive circuit 300 to generate low level to second switch circuit 500, second switch circuit
500 only allow electric currents to flow to input from outfan, and forbid that electric current flows to outfan from input, and that is, now external power source is not
Again battery is charged, due to the presence of the first diode 700, battery to be managed, inductance coil 600, the first diode 700
Form a current loop, inductance coil 600 is that battery to be managed charges, the concrete direction of its electric current be inductance coil 600 away from
The negative pole of positive pole → the first diode 700 of one end → the first diode 700 of battery cathode to be managed → battery to be managed
Negative pole → the inductance coil 600 of positive pole → battery to be managed is near one end of battery cathode to be managed.
It should be understood that above-mentioned three kinds of states can also switch over adjustment according to default switching frequency, also can be according to electricity ginseng
The data of counting collection unit 200 collection and default switching frequency are together coordinated to be adjusted, and this default switching frequency is root
Pre-set according to applied environment or user's request, in its handoff procedure, circuit main circuit current flows to and above-mentioned phase
Same, will not be described here.Battery charging and discharging of the present invention manages circuit, and electrical quantity collecting unit 200 gathers electricity ginseng in whole circuit
Number, and will collect data is activation micro-control unit 100, and micro-control unit 100 according to the electrical quantity receiving and/or default is cut
Change FREQUENCY CONTROL drive circuit 300 output drive signal to first switch circuit 400 and second switch circuit 500, thus controlling
Allow to pass through sense of current in first switch circuit 400 and second switch circuit 500, realize to battery charging and discharging to be managed
Switching, due to being in series with inductance coil 600 in charging circuit, electric current will not increase suddenly, protects whole charging circuit it is ensured that filling
The safety of circuit, in addition, external power source also gathers electric energy for inductance coil 600 while charging for battery, when certain a period of time
Carve, when micro-control unit 100 judges now to need electric energy on inductance coil is discharged, drive circuit 300 controls second switch electricity
Road 500 allows only to allow electric current to flow to its input from outfan, and the electric energy gathering before now inductance coil 600 release is electricity
Pond is charged, and realizes the recovery of energy.It can be seen that, battery charging and discharging management circuit of the present invention both can ensure that circuit discharge and recharge was pacified
Entirely, the energy in charging process can be recycled, energy saving again.
As shown in Fig. 2 wherein in an embodiment, described battery charging and discharging management circuit also includes battery voltage acquisition
Unit 800, described battery voltage acquisition unit 800 includes the first collection terminal, the second collection terminal and outfan, described cell voltage
First collection terminal of collecting unit 800 is connected with the positive pole of described battery to be managed, and the of described battery voltage acquisition unit 800
Two collection terminals are connected with the negative pole of described battery to be managed, the outfan of described battery voltage acquisition unit 800 and described micro-control
Unit 100 processed connects.
Battery voltage acquisition unit 800 gathers the duty parameter of battery to be managed, and by the battery to be managed collecting
Duty parameter sends to micro-control unit 100, to monitor battery operation state to be managed it is ensured that the safety of whole circuit.
As shown in Fig. 2 wherein in an embodiment, described battery charging and discharging management circuit also includes isolating communication unit
920, described micro-control unit 100 is connected with described battery voltage acquisition unit 800 by described isolation communication unit 920, institute
State isolation communication unit 920 to be used for described micro-control unit 100 and described battery voltage acquisition unit 800 voltage isolation.
Micro-control unit 100 is isolated, by work by isolation communication unit 920 with battery voltage acquisition unit 800 voltage
The electric power system of cycling circuit voltage and operational module keep apart, prevent low-voltages at different levels from differing and affect to measure is accurate
Property it is ensured that data acquisition accurate, and micro-control unit 100 adjust accurate.
As shown in figure 3, described electrical quantity collecting unit 200 includes current feedback amplifier 220, voltage feed-back amplifier
240th, external terminal feedback amplifier 260 and measurement resistance 280, described first switch circuit 400 is by described measurement resistance
280 are connected with described second switch circuit 500, and described current feedback amplifier 220 is in parallel with described measurement resistance 280, and institute
The outfan stating current feedback amplifier 220 in-phase end with described second switch circuit 500 is connected, described current feedback amplifier
220 end of oppisite phase is connected with the input of described first switch circuit 400, the outfan of described current feedback amplifier 220 with
Described micro-control unit 100 connects, and the in-phase end of described voltage feed-back amplifier 240 is connected with the positive pole of described battery to be managed
Connect, the end of oppisite phase of described voltage feed-back amplifier 240 is connected with the negative pole of described battery to be managed, described external terminal feedback is put
The in-phase end of big device 260 is connected with the outfan of described first switch circuit 400, described external terminal feedback amplifier 260
Out-phase end is connected with the positive pole of described battery to be managed, the outfan of described external terminal feedback amplifier 260 and described micro-control
Unit 100 processed connects.
When external power source is for voltage source, using the voltage parameter in voltage feed-back amplifier 240 Acquisition Circuit, work as outside
When power supply is current source, using the current parameters in current feedback amplifier 220 and measurement resistance 280 Acquisition Circuit.External connection end
Sub- feedback amplifier 260 gathers external voltage data, and by external voltage data transfer to micro-control unit 100, works as external electrical
When pressure ratio voltage feed-back amplifier 240 collection voltages data is high, micro-control unit 100 judges currently need to enter charged state, when
When external voltage is lower than voltage feed-back amplifier 240 collection voltages data, micro-control unit 100 judges currently need to enter electric discharge shape
State.
Wherein in an embodiment, described drive circuit 300 is pwm drive circuit 300, described pwm drive circuit 300
Output pwm drive signal.
The impulse modulation mode that the pulse duration (pulsewidth) of pwm pulse carrier becomes with the sample value of modulating wave, referred to as
Pulsewidth modulation, to be realized to battery by the Duty ratio control second switch circuit 500 current lead-through direction situation of adjustment pwm
Carry out constant current, constant voltage, floating charge.
As shown in figure 3, wherein in an embodiment, described first switch circuit 400 includes first switch pipe 420 and
Two diodes 440, described first switch pipe 420 and described second diode 440 are connected in parallel, described first switch pipe 420
Input is connected with the negative pole of described second diode 440, as the outfan of described first switch circuit 400, described first
The outfan of switching tube 420 is connected with the positive pole of described second diode 440, as the input of described first switch circuit 400
End.
As shown in figure 3, wherein in an embodiment, described second switch circuit 500 includes second switch pipe 520 and
Three diodes 540, described second switch pipe 520 and described 3rd diode 540 are connected in parallel, described second switch pipe 520
Input is connected with the negative pole of described 3rd diode 540, as the input of described second switch circuit 500, described second
The outfan of switching tube 520 is connected with the positive pole of described 3rd diode 540, as the output of described second switch circuit 500
End.Above-mentioned first switch pipe and second switch for N-shaped metal-oxide half field effect transistor and/or can be audion.
Using in a specific embodiment, and the technology that Fig. 3 manages circuit to battery charging and discharging of the present invention will be combined below
Scheme and its beneficial effect brought carry out detailed explanation.
Charged state
Power module 940 starts micro-control unit 100 is powered, and micro-control unit 100 is energized, and micro-control unit 100 is adjusted
Join pwm drive circuit 300 so as to produce pulse signal, input to second switch pipe 520 grid.By current feedback amplifier
Electric current on 220 measurement resistance 280r produces current feedback to micro-control unit 100, and micro-control unit 100 passes through decision circuitry
In size of current control pwm drive circuit 300 produce signal frequency, during high level, second switch pipe 520 turns on, power supply
Access circuit, the electric current that power supply produces became larger in this stage, now inductance coil 600 storage electric energy, in inductance electric energy
When storing to maximum, pulse signal is changed into low level, and second switch pipe 520 ends, and inductance coil 600 passes through the first diode
700 continue battery is charged, and after the release of inductance electric energy is complete, pulse signal is then changed into high level again, and so circulation is to battery
Charge.
Discharge condition
To pwm drive circuit 300, drive circuit 300 generates a signal to second and opens micro-control unit 100 output discharge signal
Close pipe 520, first switch pipe 420.Second switch pipe 520 is ended, first switch pipe 420 turns on, battery supplying power for outside electricity
Start working in road.Micro-control unit 100 passes through continuous judgement and is derived from voltage feed-back amplifier 240, external terminal feedback amplifier
260 voltage signal is compared.When the measurement voltage of external terminal feedback amplifier 260 is more than voltage feed-back amplifier 240
Measurement voltage when, system is operated in charged state, then micro-control unit 100 produce charged state signal, work as Voltage Feedback
When the voltage of amplifier 240 measurement is more than the voltage of external terminal feedback amplifier 260 measurement, system is operated in discharge condition,
Then micro-control unit 100 produces the signal of discharge condition.
When outside input is when being current source, the dutycycle of the pwm signal of second switch pipe 520 is controlled to be put by current feedback
The current signal of big device 220 feedback determines.If input be voltage source when, control second switch pipe 520 pwm signal duty
Determined by the voltage signal that voltage feed-back amplifier 240 feeds back than then.
As shown in figure 3, wherein in an embodiment, described battery charging and discharging management circuit also includes electric capacity 960, described
One end of electric capacity 960 is connected with the outfan of described second switch circuit 500, the other end of described electric capacity 960 and described first
The negative pole of diode 700 connects.
Electric capacity 960 is for filtering, and the interference electric current mixing in filtering circuit exists it is ensured that parameters gather in circuit
Accurately and micro-control unit 100 control accurate.
As shown in figure 4, a kind of battery charging and discharging manages circuit, including micro-control unit 100, current feedback amplifier 220,
Voltage feed-back amplifier 240, external terminal feedback amplifier 260, measurement resistance 280, pwm drive circuit 300, first switch pipe
420th, the second diode 440, second switch pipe 520, the 3rd diode 540, the 4th audion, the 5th audion, inductance coil
600th, the first diode 700, power supply 940, battery voltage acquisition unit 800, electric capacity 960 and isolation communication unit 920, its
In, described isolation communication unit 920 be used for by described micro-control unit 100 and described battery voltage acquisition unit 800 voltage every
From described pwm drive circuit 300 includes input, the first outfan and the second outfan, described battery voltage acquisition unit
800 include the first collection terminal, the second collection terminal and outfan；
Described power supply 940, described pwm drive circuit 300 input, the outfan of described current feedback amplifier 220, institute
State the outfan of the outfan of voltage feed-back amplifier 240 and external terminal feedback amplifier 260 respectively with described microcontroller
Unit 100 connects, and the first outfan of described pwm drive circuit 300 is connected with the control end of described first switch pipe 420, institute
The second outfan stating pwm drive circuit 300 is connected with the control end of described second switch pipe 520, described external terminal feedback
The in-phase end of amplifier 260 is connected with the input of described first switch pipe 420, the outfan of described first switch pipe 420 with
One end of described measurement resistance 280 connects, the outfan of the described other end measuring resistance 280 and described second switch pipe 520
Connect, the input of described second switch pipe 520 is connected with the negative pole of described 4th diode 980, described 4th diode 980
Positive pole be connected with one end of described inductance coil 600, the negative pole of the other end of described inductance coil 600 and battery to be managed is even
Connect, the end of oppisite phase of described external terminal feedback amplifier 260 is connected with the positive pole of described battery to be managed；
Described second diode 440 is in parallel with described first switch pipe 420, the negative pole of described second diode 440 and institute
State input connection, the positive pole of described second diode 440 and the output of described first switch pipe 420 of first switch pipe 420
End connects, and described second switch pipe 520 is connected in parallel with described 3rd diode 540, the input of described second switch pipe 520
It is connected with the negative pole of described 3rd diode 540, the outfan of described second switch pipe 520 and described 3rd diode 540
Positive pole connects, and described current feedback amplifier 220 is in parallel with described measurement resistance 280, and described current feedback amplifier 220
End of oppisite phase is connected with the outfan of described first switch pipe 420, the end of oppisite phase of described current feedback amplifier 220 and described second
The outfan of switching tube 520 connects, and the end of oppisite phase of described voltage feed-back amplifier 240 is connected with the negative pole of described battery to be managed
Connect, the in-phase end of described voltage feed-back amplifier 240 is connected with the positive pole of described battery to be managed, described first diode 700
Positive pole be connected with the input of described second switch pipe 520, the negative pole of described first diode 700 and described battery to be managed
Positive pole connect, the positive pole of described 5th diode 990 is connected with the outfan of described second switch pipe 520, the described 5th 2
The negative pole of pole pipe 990 is connected with the negative pole of described battery to be managed；
First collection terminal of described battery voltage acquisition unit 800 is connected with the positive pole of described battery to be managed, described electricity
Second collection terminal of cell voltage collecting unit 800 is connected with the negative pole of described battery to be managed, described battery voltage acquisition unit
800 outfan pass through described isolation communication unit 920 be connected with described micro-control unit 100, one end of described electric capacity 960 and
The outfan of described second switch pipe 520 connects, and the other end of described electric capacity 960 is connected with the negative pole of described first diode 700
Connect.
Battery charging and discharging of the present invention manages circuit, including micro-control unit 100, current feedback amplifier 220, Voltage Feedback
Amplifier 240, external terminal feedback amplifier 260, measurement resistance 280, pwm drive circuit 300, first switch pipe 420, second
Diode 440, second switch pipe 520, the 3rd diode 540, the 4th audion, the 5th audion, inductance coil 600, first
Diode 700, power supply 940, battery voltage acquisition unit 800 and isolation communication unit 920, wherein, described isolation communication unit
Unit 920 is used for described micro-control unit 100 and described battery voltage acquisition unit 800 voltage isolation, described drive circuit bag
Include input, the first outfan and the second outfan, described battery voltage acquisition unit 800 includes the first collection terminal, second adopts
Collection end and outfan, current feedback amplifier 220, voltage feed-back amplifier 240, external terminal feedback amplifier 260, measurement
In resistance 280 and battery voltage acquisition unit 800 Acquisition Circuit, various electrical quantitys send to micro-control unit 100, microcontroller
Unit 100, according to the electrical parameter data receiving, outputs control signals to pwm drive circuit 300, and pwm drive circuit 300 is respectively
Output drive signal, to first switch pipe 420 and second switch pipe 520, controls first switch pipe 420 and second switch pipe 520
On or off, thus control electric current flow direction, that is, realizes the switching of discharge and recharge, circuit is provided with inductance in charge and discharge process
Coil 600 avoids current break protection circuit safety, and the electric energy in inductance coil 600 can also be charged for battery to be managed,
Realize energy regenerating, isolation communication unit 920 realize between micro-control unit 100 and battery voltage acquisition unit 800 voltage every
From it is ensured that data acquisition, establish accurate, in addition, power supply 940 provides independent electric energy to guarantee that it is only for micro-control unit 100
Vertical work, the 4th diode 980, the 5th diode 990 can make to allow the maximum current passing through to differ during charge and discharge, first device
The difference of part parameter allows the rated current passed through to change therewith.As: charging current is larger, then the 4th diode 980 energy
The rated current passed through is larger.Discharge current is less, then the rated current that the 5th diode 990 can pass through is less, electric capacity 960
For filtering, there is the accurate and microcontroller it is ensured that parameters gather in circuit in the interference electric current mixing in filtering circuit
It is accurate that unit 100 controls.
A kind of battery charging and discharging device, manages circuit, described battery including battery body and battery charging and discharging described above
Body is connected with described battery charging and discharging management circuit.
The present invention also provides a kind of battery charging and discharging device, manages electricity including battery body and battery charging and discharging described above
Road, it had both enabled cell safety discharge and recharge, had higher service life, the electric energy of battery charge and discharge process can be reclaimed again
Recycle, energy saving.
Embodiment described above only have expressed the several embodiments of the present invention, and its description is more concrete and detailed, but simultaneously
Therefore the restriction to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, some deformation can also be made and improve, these broadly fall into the guarantor of the present invention
Shield scope.Therefore, the protection domain of patent of the present invention should be defined by claims.
Claims (9)
1. a kind of battery charging and discharging management circuit is it is characterised in that including micro-control unit, electrical quantity collecting unit, driving electricity
Road, first switch circuit, second switch circuit, inductance coil and the first diode, wherein, described drive circuit includes inputting
End, the first outfan and the second outfan；
Described micro-control unit is connected with the input of described electrical quantity collecting unit and described drive circuit respectively, and described
The control end of one on-off circuit is connected with the first outfan of described drive circuit, the input of described first switch circuit and institute
State outfan connection, the control end of described second switch circuit and second outfan of described drive circuit of second switch circuit
Connect, the input of described second switch circuit is connected with the positive pole of one end of described inductance coil and described first diode
Connect, the other end of described inductance coil is connected with the negative pole of battery to be managed, the negative pole of described first diode is waited to manage with described
The positive pole of reason battery connects；
Described electrical quantity collecting unit is used for gathering electric signal parameter in described battery charging and discharging management circuit, wherein, described electricity
Signal parameter includes voltage parameter and current parameters；
Electric signal parameter and/or default switching frequency that described micro-control unit gathers according to described electrical quantity collecting unit, control
Make described drive circuit output the first drive signal to open to described first switch circuit, output the second drive signal to described second
Close circuit so that described first switch circuit according to the first different drive signal control electric currents from the output of first switch circuit
End flows to the input of first switch circuit, or the output flowing to first switch circuit from the input of first switch circuit
End, makes described second switch circuit be flowed to from the outfan of second switch circuit according to the second different drive signal control electric currents
The input of second switch circuit, or the outfan of second switch circuit is flowed to from the input of second switch circuit；
Described electrical quantity collecting unit include current feedback amplifier, voltage feed-back amplifier, external terminal feedback amplifier with
And measurement resistance, described first switch circuit pass through described measurement resistance be connected with described second switch circuit, described electric current is anti-
Feedback amplifier and described measurement resistor coupled in parallel, and the output of described current feedback amplifier in-phase end and described second switch circuit
End connects, and the end of oppisite phase of described current feedback amplifier is connected with the input of described first switch circuit, described current feedback
The outfan of amplifier is connected with described micro-control unit, the in-phase end of described voltage feed-back amplifier and described battery to be managed
Positive pole connect, the end of oppisite phase of described voltage feed-back amplifier is connected with the negative pole of described battery to be managed, described external terminal
The in-phase end of feedback amplifier is connected with the outfan of described first switch circuit, the out-phase of described external terminal feedback amplifier
End is connected with the positive pole of described battery to be managed, and the outfan of described external terminal feedback amplifier is with described micro-control unit even
Connect.
2. battery charging and discharging management circuit according to claim 1 is it is characterised in that also include battery voltage acquisition list
Unit, described battery voltage acquisition unit includes the first collection terminal, the second collection terminal and outfan, described battery voltage acquisition unit
The first collection terminal be connected with the positive pole of described battery to be managed, the second collection terminal of described battery voltage acquisition unit with described
The negative pole of battery to be managed connects, and the outfan of described battery voltage acquisition unit is connected with described micro-control unit.
3. battery charging and discharging management circuit according to claim 2 is it is characterised in that also include isolating communication unit, institute
State micro-control unit to be connected with described battery voltage acquisition unit by described isolation communication unit, described isolation communication unit is used
In by described micro-control unit and the isolation of described battery voltage acquisition cell voltage.
4. battery charging and discharging management circuit according to claim 1 and 2 is it is characterised in that described drive circuit drives for pwm
Galvanic electricity road, described pwm drive circuit exports pwm drive signal.
5. battery charging and discharging according to claim 1 and 2 management circuit is it is characterised in that described first switch circuit bag
Include first switch pipe and the second diode, described first switch pipe and described second diodes in parallel connect, described first switch
The input of pipe is connected with the negative pole of described second diode, and as the outfan of described first switch circuit, described first opens
The outfan closing pipe is connected with the positive pole of described second diode, as the input of described first switch circuit.
6. battery charging and discharging according to claim 1 and 2 management circuit is it is characterised in that described second switch circuit bag
Include second switch pipe and the 3rd diode, described second switch pipe and described 3rd diodes in parallel connect, described second switch
The input of pipe is connected with the negative pole of described 3rd diode, and as the input of described second switch circuit, described second opens
The outfan closing pipe is connected with the positive pole of described 3rd diode, as the outfan of described second switch circuit.
7. battery charging and discharging according to claim 1 and 2 manages circuit it is characterised in that also including electric capacity, described electric capacity
One end be connected with the outfan of described second switch circuit, the negative pole of the other end of described electric capacity and described first diode is even
Connect.
8. a kind of battery charging and discharging management circuit is it is characterised in that inclusion micro-control unit, current feedback amplifier, voltage are anti-
Feedback amplifier, external terminal feedback amplifier, measurement resistance, pwm drive circuit, first switch pipe, the second diode, second open
Guan Guan, the 3rd diode, the 4th audion, the 5th audion, inductance coil, the first diode, power supply, battery voltage acquisition list
Unit, electric capacity and isolation communication unit, wherein, described isolation communication unit is used for described micro-control unit and described battery electricity
Pressure collecting unit voltage isolation, described pwm drive circuit includes input, the first outfan and the second outfan, described battery
Voltage acquisition unit includes the first collection terminal, the second collection terminal and outfan；
Described power supply, described pwm drive circuit input, the outfan of described current feedback amplifier, described Voltage Feedback are put
The big outfan of device and the outfan of external terminal feedback amplifier are connected with described micro-control unit respectively, and described pwm drives
First outfan on galvanic electricity road is connected with the control end of described first switch pipe, the second outfan of described pwm drive circuit with
The control end of described second switch pipe connects, and the in-phase end of described external terminal feedback amplifier is defeated with described first switch pipe
Enter end to connect, the outfan of described first switch pipe is connected with one end of described measurement resistance, the other end of described measurement resistance
It is connected with the outfan of described second switch pipe, the input of described second switch pipe is connected with the negative pole of described 4th diode
Connect, the positive pole of described 4th diode is connected with one end of described inductance coil, the other end of described inductance coil with to be managed
The negative pole of battery connects, and the end of oppisite phase of described external terminal feedback amplifier is connected with the positive pole of described battery to be managed；
Described second diode is in parallel with described first switch pipe, the negative pole of described second diode and described first switch pipe
Input connects, and the positive pole of described second diode is connected with the outfan of described first switch pipe, described second switch pipe and
Described 3rd diodes in parallel connects, and the input of described second switch pipe is connected with the negative pole of described 3rd diode, described
The outfan of second switch pipe is connected with the positive pole of described 3rd diode, described current feedback amplifier and described measurement resistance
Parallel connection, and the end of oppisite phase of described current feedback amplifier is connected with the outfan of described first switch pipe, described current feedback is put
The end of oppisite phase of big device is connected with the outfan of described second switch pipe, and the end of oppisite phase of described voltage feed-back amplifier is waited to manage with described
The negative pole of reason battery connects, and the in-phase end of described voltage feed-back amplifier is connected with the positive pole of described battery to be managed, and described the
The positive pole of one diode is connected with the input of described second switch pipe, the negative pole of described first diode and described electricity to be managed
The positive pole in pond connects, and the positive pole of described 5th diode is connected with the outfan of described second switch pipe, described 5th diode
Negative pole be connected with the negative pole of described battery to be managed；
First collection terminal of described battery voltage acquisition unit is connected with the positive pole of described battery to be managed, described cell voltage
Second collection terminal of collecting unit is connected with the negative pole of described battery to be managed, and the outfan of described battery voltage acquisition unit leads to
Cross described isolation communication unit to be connected with described micro-control unit, the outfan of one end of described electric capacity and described second switch pipe
Connect, the other end of described electric capacity is connected with the negative pole of described first diode.
9. a kind of battery charging and discharging device is it is characterised in that include battery body and as described in claim 1-8 any one
Battery charging and discharging manages circuit, and described battery body is connected with described battery charging and discharging management circuit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410508477.0A CN104218649B (en) | 2014-09-28 | 2014-09-28 | Battery charging and discharging device and management circuit |
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|---|---|---|---|
| CN201410508477.0A CN104218649B (en) | 2014-09-28 | 2014-09-28 | Battery charging and discharging device and management circuit |
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| CN104218649B true CN104218649B (en) | 2017-01-18 |
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| JP6750288B2 (en) * | 2016-04-15 | 2020-09-02 | 株式会社オートネットワーク技術研究所 | Relay device |
| CN112260359B (en) * | 2020-08-27 | 2024-01-09 | 江苏博强新能源科技股份有限公司 | BMS control method, system, electronic equipment and storage medium |
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| CN1307509C (en) * | 2004-05-20 | 2007-03-28 | 南京航空航天大学 | Cell management device |
| TW200919917A (en) * | 2007-10-19 | 2009-05-01 | Syspotek Corp | Power supply device with voltage conversion circuit |
| CN102157972B (en) * | 2011-05-18 | 2013-12-25 | 上海恒动汽车电池有限公司 | Lithium-ion battery pack equilibrium system and equilibrium method thereof |
| CN202957639U (en) * | 2012-04-18 | 2013-05-29 | 汪跃辉 | High-efficiency charging and discharging control circuit |
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